[time-nuts] Common-View GPS Network

[Jim Lux]

On 4/15/13 9:27 PM, Tom Van Baak wrote:
> NIST SIM GPS common view pinwheel
described in one of the NIST reports as an aperture coupled slot fed 
array that is better than a patch, but not as large and heavy as a choke 
ring.

  W. Kunysz, 2000, “High Performance GPS Pinwheel Antenna,” in 
Proceedings of the 2000 International Technical Meeting of the Satellite 
Division of the Institute of Navigation (ION GPS 2000), 19-22 September 
2000, Salt Lake City, Utah, USA (ION, Alexandria, Virginia), pp. 2506-251

http://www.novatel.com/assets/Documents/Papers/GPS-704xWhitePaper.pdf
Patented by Novatel & Pinwheel is a trademark


Performance is almost as good as a choke ring but a heck of a lot 
smaller and lighter.